45,522 Hits in 6.0 sec

Recent Results on Fusion of Effective Retrieval Strategies in the Same Information Retrieval System [chapter]

Steven M. Beitzel, Eric C. Jensen, Abdur Chowdhury, David Grossman, Nazli Goharian, Ophir Frieder
2004 Lecture Notes in Computer Science  
We show that this is not the case when systemic differences are held constant and different highly effective document retrieval strategies are fused within the same information retrieval system.  ...  Although the precise conditions necessary for fusion to improve retrieval have not been identified, it is widely believed that as long as component result sets used in fusion have higher relevant overlap  ...  strategies in the same information retrieval system.  ... 
doi:10.1007/978-3-540-24610-7_8 fatcat:uzrl4dzlqbdzhllyfyboeo6rfy

Fusion of effective retrieval strategies in the same information retrieval system

Steven M. Beitzel, Eric C. Jensen, Abdur Chowdhury, David Grossman, Ophir Frieder, Nazli Goharian
2004 Journal of the American Society for Information Science and Technology  
We hold constant systemic differences such as parsing, stemming, phrase processing, and relevance feedback, and fuse result sets generated from highly effective retrieval strategies in the same information  ...  Although these improvements have been observed from the fusion of result sets from several distinct information retrieval systems, it has often been thought that fusing different document retrieval strategies  ...  in the same information retrieval system.  ... 
doi:10.1002/asi.20012 fatcat:rorzpdmoi5difom7d5vghggim4

Disproving the fusion hypothesis

Steven M. Beitzel, Ophir Frieder, Eric C. Jensen, David Grossman, Abdur Chowdhury, Nazli Goharian
2003 Proceedings of the 2003 ACM symposium on Applied computing - SAC '03  
Recent work in the area suggests that many approaches, particularly multiple-evidence combinations, can be a successful means of improving the effectiveness of a system.  ...  In addition, we present a comprehensive discussion on why previous assumptions about the effectiveness of multiple-evidence techniques are misleading.  ...  strategies in the same information retrieval system.  ... 
doi:10.1145/952532.952695 dblp:conf/sac/BeitzelJCFGG03 fatcat:6txcgn5iijhtnkcq2evzgqmc3e

A unified environment for fusion of information retrieval approaches

M. Catherine McCabe, Abdur Chowdhury, David A. Grossman, Ophir Frieder
1999 Proceedings of the eighth international conference on Information and knowledge management - CIKM '99  
Our results show some improvement of effectiveness, but they also provide us for a baseline from which we can continue with other retrieval strategies and test the effect of fusing these strategies.  ...  Today, many meta-search engines exist which combine the results of various search engines in the hopes of improving overall effectiveness.  ...  Introduction Improving the effectiveness of Information Retrieval (IR) systems remains a key challenge in Computer Science.  ... 
doi:10.1145/319950.320024 dblp:conf/cikm/McCabeCGF99 fatcat:74laujc2c5gi3ip7u3d5koaxlq


David S. Ng
1977 Journal of Finance  
Data Fusion in IR usually combines the various retrieval schemes (strategies) to enhance the overall system performance.  ...  Their results indicate a pattern of tug-of-war relationship prevalent among the existing strategies, where in one strategy dominates the remaining strategies over other document collections.  ...  He achieved significant improvement in effectiveness of the information retrieval system.  ... 
doi:10.1111/j.1540-6261.1977.tb03365.x fatcat:hcdcljnmmfayphebtxbocssi4a

An adaptable search engine for multimodal information retrieval

Gilles Hubert, Josiane Mothe
2009 Journal of the American Society for Information Science and Technology  
This paper is an overview of multimodal information retrieval, challenges in the progress of multimodal information retrieval. General Terms Multi Modal Information Retrieval, Information Retrieval.  ...  Multimodal information retrieval is a research problem of great interest in all domains, due to the huge collections of multimedia data available in different contexts like text, image, audio and video  ...  the effective fusion of information from multiple channels.  ... 
doi:10.1002/asi.21091 fatcat:jgcvyun6zna7vkze5wcliibzxu

A Novel Adaptive Feature Fusion Strategy for Image Retrieval

Xiaojun Lu, Libo Zhang, Lei Niu, Qing Chen, Jianping Wang
2021 Entropy  
Feature selection and feature fusion strategies are critical in the study of multi-feature fusion image retrieval.  ...  This paper proposes a multi-feature fusion image retrieval strategy with adaptive features based on information entropy theory.  ...  Informed Consent Statement: Not applicable. Data Availability Statement: The data is contained within the article. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/e23121670 pmid:34945976 pmcid:PMC8700127 fatcat:towmd2nilzd2lcpo6ovrxslrz4

Analyses of multiple-evidence combinations for retrieval strategies

Abdur Chowdhury, Ophir Frieder, David Grossman, Catherine McCabe
2001 Proceedings of the 24th annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '01  
As expected, the improvement with fusion is small over the average precision of the retrieved sets and results in lower scores than the best system.  ...  While Lee's experiments focused on different system result sets, we focus on effective ranking strategies removing systemic differences of parsers, stemmers, phrase processing and weighting factors.  ... 
doi:10.1145/383952.384034 dblp:conf/sigir/ChowdhuryFGM01 fatcat:vl5qkbfc3ncuraz7t2mqn2yzuy

Query-Document-Dependent Fusion: A Case Study of Multimodal Music Retrieval

Zhonghua Li, Bingjun Zhang, Yi Yu, Jialie Shen, Ye Wang
2013 IEEE transactions on multimedia  
In recent years, multimodal fusion has emerged as a promising technology for effective multimedia retrieval.  ...  Given a query, existing methods derive a unified fusion strategy for all documents with the underlying assumption that the relative significance of a modality remains the same across all documents.  ...  However, since different queries have different information needs, using the same fusion strategy generally results in low retrieval accuracy.  ... 
doi:10.1109/tmm.2013.2280437 fatcat:7io6qmo4bre5vagrtaaap7lgcm

Evaluating multimodal relevance feedback techniques for medical image retrieval

Dimitrios Markonis, Roger Schaer, Henning Müller
2015 Information retrieval (Boston)  
Results using the ImageCLEF 2012 benchmark database for medical image retrieval show the potential of relevance feedback techniques in medical image retrieval.  ...  The effect of relevance feedback in automatically spelling corrected and translated queries is investigated as well.  ...  Acknowledgements This work was supported by the EU 7th Framework Program in the context of the Khresmoi project (grant 257528).  ... 
doi:10.1007/s10791-015-9260-4 fatcat:fbp7rtqpt5euvpptl4q2xyqihq

DEMIR at ImageCLEFMed 2011: Evaluation of Fusion Techniques for Multimodal Content-based Medical Image Retrieval

Adil Alpkocak, Okan Ozturkmenoglu, Tolga Berber, Ali Hosseinzadeh Vahid, Roghaiyeh Gachpaz Hamed
2011 Conference and Labs of the Evaluation Forum  
This year, we evaluated fusion and re-ranking method which is based on the best low level feature of images with best text retrieval result.  ...  The results clearly show that proper fusion of different modalities improve the overall retrieval performance.  ...  We check the variation of retrieval methods on textual and visual information to gain the best result.  ... 
dblp:conf/clef/AlpkocakOBVH11 fatcat:y2ny27frjfbqrlphupraahd6ja

On the Selection of the Best Retrieval Result Per Query –An Alternative Approach to Data Fusion– [chapter]

Antonio Juárez-González, Manuel Montes-y-Gómez, Luis Villaseñor-Pineda, Daniel Ortíz-Arroyo
2009 Lecture Notes in Computer Science  
Motivated by this fact, in this paper we focus on the automatic selection of the best retrieval result from a given set of results lists generated by different IR systems.  ...  Some recent works have shown that the "perfect" selection of the best IR system per query could lead to a significant improvement on the retrieval performance.  ...  This work was done under partial support of CONACYT (Project Grant CB-2007-01-83459 and scholarship 165499).  ... 
doi:10.1007/978-3-642-04957-6_10 fatcat:olqew2jgfba3vj3eeon24v3lwy

IIT at TREC 2003, Task Classification and Document Structrure for Known-Item Search

Steven M. Beitzel, Eric C. Jensen, Rebecca Cathey, Ling Ma, David A. Grossman, Ophir Frieder, Abdur Chowdhury, Greg Pass, Herman Vandermolen
2003 Text Retrieval Conference  
Our traditional retrieval is based on fusion of result sets generated by query runs over independent parts of the document structure.  ...  results in the top 10; correctly ranked the #1result 56% of the time. 67% of the queries performed above the average, and 49% above the median.  ...  In recent years, the category of work known as data fusion, or multiple-evidence, describes a range of techniques in information retrieval whereby multiple pieces of information are combined to achieve  ... 
dblp:conf/trec/BeitzelJCMGFCPV03 fatcat:tlnjmlyuhndyvcwwspo2wb3wde

DEMIR at ImageCLEFwiki 2011: Evaluating Different Weighting Schemes in Information Retrieval

Tolga Berber, Ali Hosseinzadeh Vahid, Okan Ozturkmenoglu, Roghaiyeh Gachpaz Hamed, Adil Alpkocak
2011 Conference and Labs of the Evaluation Forum  
In these experiments we found that choice of proper weighting model may crucially affect the performance of any information retrieval system and also we found that although linear weighted fusion is simplest  ...  The results clearly show that combining text-based and content-based image retrieval with a proper fusion technique improves the performance.  ...  Different Weighting Models in Text Retrieval Since the choice of the weighting model may crucially affect the performance of any information retrieval system specially the text based one, first of all  ... 
dblp:conf/clef/BerberVOHA11 fatcat:jvmom6q6sjevtmbvyvocdmoxfq

Information Fusion in Multimedia Information Retrieval [chapter]

Jana Kludas, Eric Bruno, Stéphane Marchand-Maillet
2008 Lecture Notes in Computer Science  
In retrieval, indexing and classification of multimedia data an efficient information fusion of the different modalities is essential for the system's overall performance.  ...  Since information fusion, its influence factors and performance improvement boundaries have been lively discussed in the last years in different research communities, we will review their latest findings  ...  The section includes a discussion on influence factors of fusion effectiveness and the design of an optimal fusion system.  ... 
doi:10.1007/978-3-540-79860-6_12 fatcat:aemicty32jgbrcbo43alwm7qou
« Previous Showing results 1 — 15 out of 45,522 results